Global Patent Index - EP 0068200 A1

EP 0068200 A1 19830105 - Process for the polymerization or copolymerization of ethylene.

Title (en)

Process for the polymerization or copolymerization of ethylene.

Title (de)

Verfahren zur Polymerisation oder Copolymerisation von Äthylen.

Title (fr)

Procédé pour la polymérisation ou la copolymérisation de l'éthylène.

Publication

EP 0068200 A1 19830105 (EN)

Application

EP 82105036 A 19820608

Priority

  • JP 6747782 A 19820423
  • JP 9805581 A 19810624

Abstract (en)

[origin: ES8308573A1] Polymerization of ethylene or copolymerization of ethylene with other alpha -olefin is carried out in the presence of a specific catalyst system. The catalyst system is obtained by preparing a reaction product (A) of an organic aluminum compound (I) represented by the formula AlRn1X3-n where R1 is hydrogen or an alkyl group having from 1 to 10 carbon atoms, X is Cl or Br and n is a number satisfying 0<n<3, with a mixture of a straight chain aliphatic alcohol and a branched chain aliphatic alcohol or a cyclic alcohol, separately preparing a reaction product (B) of an organic magnesium compound with a hydropolysiloxane or a silicone compound in which organic groups and hydroxyl groups are bonded to silicon atoms, reacting the reaction product (A) with the reaction product (B) to produce a reaction product (C), reacting the reaction product (C) with a halogen-containing titanium or vanadium compound to obtain a solid product (D) and mixing the solid product (D) with an organic aluminum compound (II).

IPC 1-7

C08F 10/00; C08F 4/62

IPC 8 full level

C08F 4/62 (2006.01); C08F 10/00 (2006.01)

CPC (source: EP US)

C08F 10/00 (2013.01 - EP US); Y10S 526/909 (2013.01 - EP US)

Citation (search report)

  • [A] US 4223118 A 19800916 - TSUBAKI KAZUMI, et al
  • [A] CHEMICAL ABSTRACTS, vol. 91, no. 12, 17th September 1979, page 22, no. 92262s, Columbus Ohio (USA); & JP - A - 79 47 784 (NISSAN CHEMICAL INDUSTRIES LTD.) (14-04-1979)

Designated contracting state (EPC)

BE DE FR GB NL

DOCDB simple family (publication)

EP 0068200 A1 19830105; EP 0068200 B1 19850213; AU 550574 B2 19860327; AU 8508282 A 19830106; CA 1185050 A 19850402; DE 3262306 D1 19850328; ES 513412 A0 19830901; ES 8308573 A1 19830901; US 4464518 A 19840807

DOCDB simple family (application)

EP 82105036 A 19820608; AU 8508282 A 19820622; CA 405542 A 19820621; DE 3262306 T 19820608; ES 513412 A 19820623; US 38531482 A 19820604